The diseased Chinese mitten crab, Eriocheir sinensis exhibited signs of
weakness and a weak response to stimulation. Typical gross signs of WSSV infection
in shrimp (i.e. overall reddish body coloration and appearance of white spots in
the cuticle) were not found in the infected crabs. (B) Electron micrograph of negatively
stained WSSV virions in its haemolymph. Enveloped virion (thick arrow) and
nucleocapsid (thin arrow), Scale bar = 10 m.
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